摘要
构建新发展格局是中国经济高质量发展的重要动力.文章从省际贸易视角出发,采用地区间引力模型对中国省际间的贸易流量进行测算,在此基础上探讨了数字经济对省际贸易发展的影响,并对数字经济与省际贸易流量、贸易成本、价格一体化和边界效应之间的关系进行实证检验.研究结果表明:(1)数字经济发展不仅可以促进省际贸易流出,而且可以促进省际贸易流入,进而提升中国省际贸易规模.(2)数字经济发展可以通过降低省际贸易成本提升省际贸易规模.(3)数字经济发展虽然能有效促进价格一体化水平的提升,但价格一体化提升引致的省际贸易量增加主要集中在内陆地区,对沿海地区省际贸易的影响不显著.(4)数字经济发展可以同时增加省内贸易和省际贸易量,但不能减弱边界效应.研究结论为新发展格局下构建统一开放的国内贸易市场体系提供了有益的政策参考.
Abstract
Against the backdrop of rising trade protectionism globally,China has proposed a new development paradigm characterized by a dual circulation mode,with the domestic economy forming the mainstay and the domestic and international economies mutually reinforcing each other.As an integral part of the domestic economy,inter-provincial trade plays a significant role in achieving high-quality economic development.In this context,this paper estimates the trade flow matrix data between provinces based on the gravity model of trade and the distribution coefficient method for transportation volume.Building on this,this paper examines the overall effect and specific mechanisms of the digital economy in promoting the circulation of inter-provincial trade,and further analyzes the role of the digital economy in reducing the boundary effects of inter-provincial trade.The findings indicate that:Firstly,spatially,inter-provincial trade is still predominantly concentrated in eastern coastal provinces,with western regions generally having a lower scale of trade inflow and outflow;temporally,there has been a relative decline in the scale of trade outflow and inflow in northeastern regions.Secondly,the digital economy not only significantly promotes inter-provincial trade outflow but also inflow,thereby enhancing the scale of inter-provincial trade,and the results remain significant after tests for endogeneity and robustness.Thirdly,the digital economy can reduce inter-provincial trade costs by optimizing logistics networks and improving supply-chain management efficiency,thus increasing the scale of inter-provincial trade.Additionally,the development of the digital economy lowers the cost of information search,breaks information asymmetry leading to regional monopolies and administrative barriers,and enhances the level of price integration,which in turn increases the scale of inter-provincial trade.However,trade activities in coastal areas are more susceptible to external environmental influences,so the mediating effect of price integration is not significant.Finally,while the digital economy can promote both inter-provincial and intra-provincial trade,its overall impact on reducing boundary effects is not apparent.
基金项目
国家社会科学基金项目(23CTJ012)
河南省社会科学规划项目(2022CJJ121)
河南财经政法大学黄廷方/信和青年学者资助计划(20230405)
NETL
NSTL
万方数据